nextcloud/core/Controller/LostController.php

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<?php
/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
*
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* @author Bernhard Posselt <dev@bernhard-posselt.com>
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* @author Björn Schießle <bjoern@schiessle.org>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Julius Haertl <jus@bitgrid.net>
* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Victor Dubiniuk <dubiniuk@owncloud.com>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
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*/
namespace OC\Core\Controller;
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use \OCP\AppFramework\Controller;
use \OCP\AppFramework\Http\TemplateResponse;
use OCP\AppFramework\Utility\ITimeFactory;
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use \OCP\IURLGenerator;
use \OCP\IRequest;
use \OCP\IL10N;
use \OCP\IConfig;
use OCP\IUserManager;
use OCP\Mail\IMailer;
use OCP\Security\ISecureRandom;
use OCP\Security\StringUtils;
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/**
* Class LostController
*
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* Successfully changing a password will emit the post_passwordReset hook.
*
* @package OC\Core\Controller
*/
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class LostController extends Controller {
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/** @var IURLGenerator */
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protected $urlGenerator;
/** @var IUserManager */
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protected $userManager;
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/** @var \OC_Defaults */
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protected $defaults;
/** @var IL10N */
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protected $l10n;
/** @var string */
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protected $from;
/** @var bool */
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protected $isDataEncrypted;
/** @var IConfig */
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protected $config;
/** @var ISecureRandom */
protected $secureRandom;
/** @var IMailer */
protected $mailer;
/** @var ITimeFactory */
protected $timeFactory;
/**
* @param string $appName
* @param IRequest $request
* @param IURLGenerator $urlGenerator
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* @param IUserManager $userManager
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* @param \OC_Defaults $defaults
* @param IL10N $l10n
* @param IConfig $config
* @param ISecureRandom $secureRandom
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* @param string $from
* @param string $isDataEncrypted
* @param IMailer $mailer
* @param ITimeFactory $timeFactory
*/
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public function __construct($appName,
IRequest $request,
IURLGenerator $urlGenerator,
IUserManager $userManager,
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\OC_Defaults $defaults,
IL10N $l10n,
IConfig $config,
ISecureRandom $secureRandom,
$from,
$isDataEncrypted,
IMailer $mailer,
ITimeFactory $timeFactory) {
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parent::__construct($appName, $request);
$this->urlGenerator = $urlGenerator;
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$this->userManager = $userManager;
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$this->defaults = $defaults;
$this->l10n = $l10n;
$this->secureRandom = $secureRandom;
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$this->from = $from;
$this->isDataEncrypted = $isDataEncrypted;
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$this->config = $config;
$this->mailer = $mailer;
$this->timeFactory = $timeFactory;
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}
/**
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* Someone wants to reset their password:
*
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* @PublicPage
* @NoCSRFRequired
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*
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* @param string $token
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* @param string $userId
* @return TemplateResponse
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*/
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public function resetform($token, $userId) {
try {
$this->checkPasswordResetToken($token, $userId);
} catch (\Exception $e) {
return new TemplateResponse(
'core', 'error', [
"errors" => array(array("error" => $e->getMessage()))
],
'guest'
);
}
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return new TemplateResponse(
'core',
'lostpassword/resetpassword',
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array(
'link' => $this->urlGenerator->linkToRouteAbsolute('core.lost.setPassword', array('userId' => $userId, 'token' => $token)),
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),
'guest'
);
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}
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/**
* @param string $userId
* @param string $userId
* @throws \Exception
*/
private function checkPasswordResetToken($token, $userId) {
$user = $this->userManager->get($userId);
$splittedToken = explode(':', $this->config->getUserValue($userId, 'owncloud', 'lostpassword', null));
if(count($splittedToken) !== 2) {
throw new \Exception($this->l10n->t('Couldn\'t reset password because the token is invalid'));
}
if ($splittedToken[0] < ($this->timeFactory->getTime() - 60*60*12) ||
$user->getLastLogin() > $splittedToken[0]) {
throw new \Exception($this->l10n->t('Couldn\'t reset password because the token is expired'));
}
if (!StringUtils::equals($splittedToken[1], $token)) {
throw new \Exception($this->l10n->t('Couldn\'t reset password because the token is invalid'));
}
}
/**
* @param $message
* @param array $additional
* @return array
*/
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private function error($message, array $additional=array()) {
return array_merge(array('status' => 'error', 'msg' => $message), $additional);
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}
/**
* @return array
*/
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private function success() {
return array('status'=>'success');
}
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/**
* @PublicPage
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*
* @param string $user
* @return array
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*/
public function email($user){
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// FIXME: use HTTP error codes
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try {
$this->sendEmail($user);
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} catch (\Exception $e){
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return $this->error($e->getMessage());
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}
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return $this->success();
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}
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/**
* @PublicPage
* @param string $token
* @param string $userId
* @param string $password
* @param boolean $proceed
* @return array
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*/
public function setPassword($token, $userId, $password, $proceed) {
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if ($this->isDataEncrypted && !$proceed) {
return $this->error('', array('encryption' => true));
}
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try {
$this->checkPasswordResetToken($token, $userId);
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$user = $this->userManager->get($userId);
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if (!$user->setPassword($password)) {
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throw new \Exception();
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}
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\OC_Hook::emit('\OC\Core\LostPassword\Controller\LostController', 'post_passwordReset', array('uid' => $userId, 'password' => $password));
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$this->config->deleteUserValue($userId, 'owncloud', 'lostpassword');
@\OC_User::unsetMagicInCookie();
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} catch (\Exception $e){
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return $this->error($e->getMessage());
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}
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return $this->success();
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}
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/**
* @param string $user
* @throws \Exception
*/
protected function sendEmail($user) {
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if (!$this->userManager->userExists($user)) {
throw new \Exception($this->l10n->t('Couldn\'t send reset email. Please make sure your username is correct.'));
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}
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$userObject = $this->userManager->get($user);
$email = $userObject->getEMailAddress();
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if (empty($email)) {
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throw new \Exception(
$this->l10n->t('Could not send reset email because there is no email address for this username. Please contact your administrator.')
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);
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}
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$token = $this->secureRandom->generate(21,
ISecureRandom::CHAR_DIGITS.
ISecureRandom::CHAR_LOWER.
ISecureRandom::CHAR_UPPER);
$this->config->setUserValue($user, 'owncloud', 'lostpassword', $this->timeFactory->getTime() .':'. $token);
$link = $this->urlGenerator->linkToRouteAbsolute('core.lost.resetform', array('userId' => $user, 'token' => $token));
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$tmpl = new \OC_Template('core', 'lostpassword/email');
$tmpl->assign('link', $link);
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$msg = $tmpl->fetchPage();
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try {
$message = $this->mailer->createMessage();
$message->setTo([$email => $user]);
$message->setSubject($this->l10n->t('%s password reset', [$this->defaults->getName()]));
$message->setPlainBody($msg);
$message->setFrom([$this->from => $this->defaults->getName()]);
$this->mailer->send($message);
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} catch (\Exception $e) {
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throw new \Exception($this->l10n->t(
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'Couldn\'t send reset email. Please contact your administrator.'
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));
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}
}
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}